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Finding the Fourth Proportional to 172,225.52, 237,787.12 and 154,019.76

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Solution

The fourth proportional to 172,225.52, 237,787.12 and 154,019.76 is: 212,650.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,225.52 : 237,787.12 = 154,019.76 : x
  2. Step 2: Convert to fraction form
    172,225.52/237,787.12 = 154,019.76/x
  3. Step 3: Cross multiply
    172,225.52x = 237,787.12 × 154,019.76
  4. Step 4: Simplify right side
    172,225.52x = 36,623,915,153.49
  5. Step 5: Solve for x
    x = 36,623,915,153.49/172,225.52
  6. Step 6: Final answer
    x = 212,650.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.